Strain gradient elasticity and stress fibers

被引:3
作者
Lazopoulos, K. A. [1 ]
Lazopoulos, A. K. [2 ]
机构
[1] Natl Tech Univ Athens, Sch Math Sci SEMFE, Dept Mech, GR-15773 Athens, Greece
[2] Hellen Army Acad, Math Sci & Mech Dept, Vari, Greece
关键词
Strain gradient; Elasticity; Torsion; Intrinsic length; Stress fiber; Shear modulus; CONTRACTION; PLASTICITY;
D O I
10.1007/s00419-013-0752-7
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Since stress fibers have micro-size dimensions, their biomechanical behavior should demand mechanical models conforming with gradient strain deformation theories. In particular, the torsion and the stretching of stress fibers are discussed into the context of strain gradient elasticity theory and their size effects. It is proven for the torsion problem that the torsion moment varies with the axial length of the bar for constant twist angle, whereas for the simple tension problem, the strain is non-uniform along the stress fiber. The proposed theory is supported by experimental evidence.
引用
收藏
页码:1371 / 1381
页数:11
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