Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 69 for “"Compressive Loading"”.
-
Behavior of plain concrete under cyclic compressive loading
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1980.
-
Multiscale structural investigation of bamboo under compressive Loading
… of its excellent mechanical performance under loading as well as its low density and rapid growth. Application of bamboo to engineering, architecture and infrastructure requires in-depth understanding of the relationship between its morphology and mechanics, including how this regularly spaced …
-
Finite element analysis of cell subjected to compressive loading
A 3D finite element model was built to study the mechanical response of the cell to load. The model included major structural components of a cell like cytoskeletal elements, cell membrane and the presence of internal fluid pressure. The cell was considered as a pressurized, fluid filled bag where …
-
A Subject Specific Surface Electromyography Model For Estimating L4/L5 Compressive Loading
… account for less than 15% of LBP cases. Heavy loading of the lumbar spine and tight hamstrings have been identified as risk factors for LBP. Tight hamstrings pull the pelvis posteriorly and reduce the lordosis of the spine, resulting in increased loading of the lumbar vertebral bodies of the …
-
Simulation of the crushing of a two-dimensional particle bed due to compressive loading
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1987.
-
Cervical Spine Tolerance And Response In Compressive Loading Modes Including Combined Compression And Lateral Bending
… about the effects of lateral bending on overall compressive tolerance of the human cervical spine, it is unknown if the presence of lateral bending is important to consider during impacts with the apex of the head. Compressive injury tolerance has historically been reported by identifying the …
-
Effect of Sustainable and Composite Materials on the Mechanical Behavior of Sandwich Panels Under Edgewise Compressive Loading
… behavior of sandwich panels under edgewise compressive loading. The first task of the study was to use four different facesheet materials and the same Nomex honeycomb core. The number of facesheet layers consecutively increased from one layer to four layers on each side of the core for each …
-
Novel design for foot pressure measurement using opto-electronics in rehabilitation
… and strikes on a reflective surface where the compressive loading changes the refractive angle and the path length of the transmitted light, thereby varying the intensity of light reaching the detector. The change in intensity of light detected will be proportional to the change in voltage and …
-
Finite Element Analysis of the Effect of Low-Speed Rear End Collisions on the Medial Meniscus
… Rear end collisions may produce a combination of compressive loading and torque about the knee that will injure the medial meniscus during the initial impact and the rebound phase. The purpose of this study is to determine if it is possible for rear end low-speed collisions to tear the medial …
-
Incorporation of Bio Based Flax Fiber Reinforced Polymer Skins for Packaging Enhancements
… composite skins is to reduce/eliminate the compressive loading subjected to the boxes while stacking in warehouses.
-
Predicting off-axis bone strength of the distal radius using high-resolution peripheral quantitative computed tomography based finite element modeling
… because they determine failure load under pure compressive loading conditions and neglect off-axis loads that occur during a fall on an outstretched hand. The objective of this research was to identify moment arms in a HR-pQCT distal radius FE model that best predicted off-axis experimental …
-
Fabrication and characterization of Ni-Mn-Ga ferromagnetic shape-memory alloy composites
… stress-strain behavior of the composites under compressive loading to stresses of 10 MPa was also characterized. In the FSMA/polymer composite samples, the first compressive loading test gave a stress/strain curve which is linear with one modulus up to a threshold stress. Beyond this threshold …
-
High-Strain Rate Tensile Characterization Of Graphite Platelet Reinforced Vinyl Ester Based Nanocomposites Using Split-Hopkinson Pressure Bar
… are characterized under both dynamic tensile and compressive loading. Dynamic direct tensile tests are performed applying the reverse impact Split Hopkinson Pressure Bar (SHPB) technique. The specimen geometry for tensile test is parametrically optimized by Finite Element Analysis (FEA) using …
-
Electrical characterization of carbon black filled rubber
… have been monitored as functions of uniaxial compressive stress, time, temperature, and mechanical and thermal history. Capacitance and conductance have also been monitored as functions of frequency under various degrees of compressive loading and before and after specific heat treatments. A …
-
Deformation Localization in Constrained Layers of Metallic Glasses: A Parametric Modeling Analysis
… confinement. Under nominally uniaxial compressive loading, a lower thickness-to-diameter ratio results in higher plastic flow stresses. Shear bands tend to concentrate in regions away from the interface with the base material. The findings provide a mechanistic rationale for …
-
Computational Stress and Deformation Analysis of Mammary Prosthesis
… the stresses in the implant walls under tissue loading. The non-linear material models were used to more accurately model the complex nature of the implant stresses. After analysis it was found that the implants were under compressive loading which meant that local buckling in the implant might …
-
The effect of dynamic shear force on chondrocyte biosynthesis in agarose gels
… (ECM) within the articular cartilage derives its compressive modulus from the electrostatic and osmotic interactions between highly charged glycosaminoglycan (GAG) chains. Furthermore, the structural integrity of the ECM comes from the tightly interwoven collagen network, which accounts for the …
-
Lessons learned in the design and erection of box girder bridges from the West Gate collapse
… reveal the lack of understanding of the slender compressive elements present in such structures. A brief literature review presents the buckling and deformation modes found in stiffened plates under compressive loading, showing the development of understanding of these systems from papers written …
-
Compressive failure of notched angle-ply composite laminates: three-dimensional finite element analysis and experiment
… circular holes were tested under uniaxial compressive loading. The results from these tests show that the [(±45)₁₂]<sub>s</sub> laminate exhibited plastic deformation, with ultimate applied strains exceeding -1%. All other laminates failed in a brittle manner with ultimate strains of less …
Page 1 of 4