{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/140691"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/140691","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"On the Need to Acquire Data for the Advancement of Shock Prediction","abstract":"Today, most shock propagation predictions are empirically based, resulting from a single study done by Martin Marietta in 1970. That work examined a body of shock data available at the time to create empirically derived guidance on how shock magnitude propagates through joints and distance. Most space programs use this Martin Marietta data until final shock validation testing where actual propagation is observed and defined. At this point, exceedances can be costly. Modern shock prediction techniques exist, but these are not proven for official use because existing data is either too simple, the analysis is stymied by an insufficient finite element model, or the results of prior work are proprietary. This report demonstrates that even on a simple structure, 1) the historical empirical technique does not correctly predict the environment, and 2) basic linear and non-linear analysis is not sufficient for analysis of shock. This work sets the foundation for improving shock prediction by gathering and releasing open-source, high quality shock data that can be used by anyone to validate new techniques.","abstract_html":"Today, most shock propagation predictions are empirically based, resulting from a single study done by Martin Marietta in 1970. That work examined a body of shock data available at the time to create empirically derived guidance on how shock magnitude propagates through joints and distance. Most space programs use this Martin Marietta data until final shock validation testing where actual propagation is observed and defined. At this point, exceedances can be costly. Modern shock prediction techniques exist, but these are not proven for official use because existing data is either too simple, the analysis is stymied by an insufficient finite element model, or the results of prior work are proprietary. This report demonstrates that even on a simple structure, 1) the historical empirical technique does not correctly predict the environment, and 2) basic linear and non-linear analysis is not sufficient for analysis of shock. This work sets the foundation for improving shock prediction by gathering and releasing open-source, high quality shock data that can be used by anyone to validate new techniques.","abstract_has_math":false,"creators":["Yunis, Ramsey Jonah"],"institution":"Virginia Tech","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Aerospace Engineering","degree_department":"Aerospace and Ocean Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":["Canfield, Robert Arthur","Philen, Michael Keith"],"committee_members":["Warren, Jerry"],"year":2026,"date_issued":"2026-01-08","date_published":"2026-01-08","updated_at":"2026-07-22T22:20:21Z","subjects":["shock","pyroshock","dynamics","loads","FEA","prediction"],"languages":["en"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["vt_gsexam:44865"],"render_values":[{"text":"vt_gsexam:44865","href":null,"code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/10919/140691","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.committeechair","label":"Committee Chair","values":["Canfield, Robert Arthur","Philen, Michael Keith"]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Warren, Jerry"]},{"key":"dc:contributor.department","label":"Department","values":["Aerospace and Ocean Engineering"]},{"key":"dc:creator","label":"Author","values":["Yunis, Ramsey Jonah"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2026-01-09T09:01:06Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-01-09T09:01:06Z"]},{"key":"dc:date.issued","label":"Date","values":["2026-01-08"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Tech"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Aerospace Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["shock","pyroshock","dynamics","loads","FEA","prediction"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["vt_gsexam:44865"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/10919/140691"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Today, most shock propagation predictions are empirically based, resulting from a single study done by Martin Marietta in 1970. That work examined a body of shock data available at the time to create empirically derived guidance on how shock magnitude propagates through joints and distance. Most space programs use this Martin Marietta data until final shock validation testing where actual propagation is observed and defined. At this point, exceedances can be costly. Modern shock prediction techniques exist, but these are not proven for official use because existing data is either too simple, the analysis is stymied by an insufficient finite element model, or the results of prior work are proprietary. This report demonstrates that even on a simple structure, 1) the historical empirical technique does not correctly predict the environment, and 2) basic linear and non-linear analysis is not sufficient for analysis of shock. This work sets the foundation for improving shock prediction by gathering and releasing open-source, high quality shock data that can be used by anyone to validate new techniques."]},{"key":"dc:description.abstractgeneral","label":"General Abstract","values":["When designing rockets and their payloads, analysis is performed to predict the forces that will act on the various components of the system. This analysis ensures the design is adequate for the complex structures to survive their journey. Once the structure is assembled, it is subjected to testing that replicates the variety of harsh environments that it will be subjected to on its way to space. If the forces were under-predicted, expensive one-of-a-kind equipment like a telescope lens or solar panel could be damaged. If they are over-predicted, additional mission objectives, like additional scientific sensors, will be needlessly left behind on Earth to offset the additional weight of the larger-than-necessary structures. This report uses a simple structure to demonstrate that 1) conventional wisdom regarding the type of force known as a mechanical shock may not accurately predict the forces the structure will see, and 2) modern techniques that have been successfully applied to other use cases may be inadequate for the prediction of shock. This work sets the foundation for improving shock prediction by gathering and releasing open-source, high quality shock data that can be used by anyone to validate new techniques."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["ETD"]},{"key":"dc:title","label":"Title","values":["On the Need to Acquire Data for the Advancement of Shock Prediction"]}]}],"canonical_facts":{"dc:contributor.committeechair":["Canfield, Robert Arthur","Philen, Michael Keith"],"dc:contributor.committeemember":["Warren, Jerry"],"dc:contributor.department":["Aerospace and Ocean Engineering"],"dc:creator":["Yunis, Ramsey Jonah"],"dc:date.accessioned":["2026-01-09T09:01:06Z"],"dc:date.available":["2026-01-09T09:01:06Z"],"dc:date.issued":["2026-01-08"],"dc:description.abstract":["Today, most shock propagation predictions are empirically based, resulting from a single study done by Martin Marietta in 1970. 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This work sets the foundation for improving shock prediction by gathering and releasing open-source, high quality shock data that can be used by anyone to validate new techniques."],"dc:description.abstractgeneral":["When designing rockets and their payloads, analysis is performed to predict the forces that will act on the various components of the system. This analysis ensures the design is adequate for the complex structures to survive their journey. Once the structure is assembled, it is subjected to testing that replicates the variety of harsh environments that it will be subjected to on its way to space. If the forces were under-predicted, expensive one-of-a-kind equipment like a telescope lens or solar panel could be damaged. If they are over-predicted, additional mission objectives, like additional scientific sensors, will be needlessly left behind on Earth to offset the additional weight of the larger-than-necessary structures. This report uses a simple structure to demonstrate that 1) conventional wisdom regarding the type of force known as a mechanical shock may not accurately predict the forces the structure will see, and 2) modern techniques that have been successfully applied to other use cases may be inadequate for the prediction of shock. This work sets the foundation for improving shock prediction by gathering and releasing open-source, high quality shock data that can be used by anyone to validate new techniques."],"dc:description.degree":["Master of Science"],"dc:format.medium":["ETD"],"dc:identifier.other":["vt_gsexam:44865"],"dc:identifier.uri":["https://hdl.handle.net/10919/140691"],"dc:language.iso":["en"],"dc:publisher":["Virginia Tech"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:subject":["shock","pyroshock","dynamics","loads","FEA","prediction"],"dc:title":["On the Need to Acquire Data for the Advancement of Shock Prediction"],"dc:type":["Thesis"],"thesis:degree_discipline":["Aerospace Engineering"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute and State University"]},"updated_at":"2026-07-22T22:20:21Z"}