Mechanics of tendon, from an engineering perspective
Mechanics of tendon, from an engineering perspective
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DOI：
10.1016/j.ijfatigue.2006.09.020
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发表时间：
2007-06-01
影响因子：
6
通讯作者：
Ker, Robert F.
中科院分区：
文献类型：
--
作者：
Ker, Robert F.
这是一个审查的力学钢筋束，新的观察：（i）弹性模量在零应力和（ii）疲劳断裂的模式。肌腱的胶原结构是纤维，细长，横截面大致呈圆形。原纤维的直径是众所周知的，但它们的长度仍然不确定。基本的结构问题是：原纤维是否贯穿肌腱的整个长度，或者每个原纤维是否至少有一端在肌腱中？这是一个简单的问题，没有简单的答案。测量弹性模量、UTS和滞后的困难源于将钢筋束夹紧到试验机中的问题。这是通过生活中进行的测试来规避的。疲劳既是这本杂志的重点，也是肌腱特别重要。疲劳的敏感性是这样的，断裂只能通过持续的修复来避免，每个肌腱只能满足其习惯性应力。肌腱的疲劳断裂包括纵向裂纹，留下长而薄的交错纤维单元。在最深层次上，整个生物学涉及作用于材料的力，这使得材料力学成为生物学的中心。(c)2006爱思唯尔有限公司保留所有权利。
This is a review of the mechanics of tendon, with new observations on: (i) elastic modulus around zero stress and (ii) the mode of fatigue rupture. The collagenous building-block of tendon is the fibril, long and thin, and more-or-less circular in cross-section. The diameters of fibrils are well-known, but their lengths remain uncertain. The basic structural question is: do fibrils run the whole length of the tendon, or does each fibril have at least one end in the tendon? This is a simple question, with no simple answer. Difficulties in measuring elastic modulus, UTS and hysteresis stem from the problem of clamping the tendon into the test machine. This is circumvented by tests carried out in life. Fatigue is both the focus of this journal, and is also especially important for tendon. Susceptibility to fatigue is such that rupture is only avoided by ongoing repair, with each tendon being only just adequate for its habitual stresses. Fatigue rupture of tendon involves longitudinal cracks leaving long, thin interdigitating fibrous units. At the deepest level, the whole of biology involves forces acting on materials, which Puts the Mechanics of Materials at the centre of Biology. (c) 2006 Elsevier Ltd. All rights reserved.