关于固定髋关节假体的骨水泥的应力状态（作者译）
[On the stress state of bone cement fixing a hip joint prosthesis (author's transl)].
作者信息
Stern J
出版信息
Arch Orthop Unfallchir. 1977 Jun 30;88(3):309-12. doi: 10.1007/BF00416619.
PMID:889525
Abstract
Using a simplified model, tests were made to investigate the shear stress distribution at a hip joint prosthesis. A marked increase of stress at the tip of the prosthesis was found through photoelasticity. This peak stress resulted in a safety factor of 3 against exceeding the shear strength of bone cement. Since the calculation of the stress is based on unfavourable assumptions, the actual factor of safety should show a higher value still.
摘要
使用一个简化模型，进行了测试以研究髋关节假体处的剪应力分布。通过光弹性法发现假体尖端处的应力显著增加。该峰值应力导致安全系数为3，以防止超过骨水泥的抗剪强度。由于应力计算基于不利假设，实际安全系数应更高。
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