Deformation and failure in cellular materials

Journal Article · Sat Mar 01 00:00:00 EST 1997 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.55.3271· OSTI ID:505233

Ladd, A J; Kinney, J H ^[1]; Breunig, T M ^[2]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
2. University of California San Francisco, San Francisco, California 94143 (United States)

An isotropic, three-dimensional, lattice-spring model is proposed to describe deformation and failure in heterogeneous materials. Young`s moduli of samples of trabecular bone have been calculated, using images of the microstructure obtained from x-ray microtomography. An analysis of the stress distribution indicates that trabecular bone will most likely fail due to local tensile stresses, even when the macroscopic load is compressive. In the samples studied, there does not seem to be a homogenization length scale beyond which the material can be described by an effective medium theory. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 505233
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 55, Issue 3; Other Information: PBD: Mar 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
55 BIOLOGY AND MEDICINE
BASIC STUDIES
COMPOSITE MATERIALS
MECHANICAL PROPERTIES
BONE TISSUES
MATHEMATICAL MODELS
DEFORMATION
MICROSTRUCTURE
X-RAY RADIOGRAPHY
COMPUTERIZED SIMULATION
STRESS ANALYSIS
YOUNG MODULUS
FRACTURES