Wells J G, Rawlings R D
Biomaterials. 1985 Jul;6(4):218-24. doi: 10.1016/0142-9612(85)90016-x.
The mechanical properties of trabecular bone and a simple plug prosthetic system have been determined over a range of displacement from 0.1 to 5 mm/min. Acoustic emission, a technique which is capable of detecting dynamic processes within a material, was used to monitor the compression tests on the prosthetic system. It was found that the stiffness and strength of trabecular bone and the prosthetic system increased with increasing strain rate of testing. The acoustic emission results demonstrated that the improvement in mechanical behaviour at the fast strain rates was accompanied by a decrease in the extent of the failure of the trabeculae. The technique of activation analysis has been applied to the results in order to identify the rate controlling fracture mechanism. Finally, the strength of the prosthetic system was correlated with the shear and compressive strengths of trabecular bone.
在0.1至5毫米/分钟的位移范围内，已测定了松质骨和一种简单的栓状假体系统的力学性能。声发射是一种能够检测材料内部动态过程的技术，用于监测假体系统的压缩试验。结果发现，松质骨和假体系统的刚度和强度随测试应变率的增加而增加。声发射结果表明，在快速应变率下力学行为的改善伴随着小梁破坏程度的降低。已将活化分析技术应用于这些结果，以确定速率控制断裂机制。最后，假体系统的强度与松质骨的剪切强度和抗压强度相关。
