Related Experiment Video
Updated: Jul 26, 2025

Artificial Thermal Ageing of Polyester Reinforced and Polyvinyl Chloride Coated Technical Fabric
Published on: January 29, 2020
Study on nonlinear constitutive model of skin under compression load over a wide range of strain rates
Xiaoping Zhang1, Cun Wen1, Chengli Tang1
1School of Mechanical Engineering, Nantong University, Nantong, China.
Purpose:
In wound ballistics, skin has obvious blocking effect in the biological target penetration of projectiles. An analytical description of skin mechanical properties under compression can set the basis for the numerical simulation and the evaluation of blocking effect.
Methods:
In this study, an improved three-parameter solid visco-elastic model was proposed to describe the skin creep phenomenon. And then combined with Maxwell and Ogden model, a new nonlinear skin constitutive model, consisting of hyper-elastic unit, creep unit and relaxation unit in parallel, was established. Here, we examine the material properties of freshly harvested porcine skin in compression at strain rates from 0.01/s to 4000/s.
Results:
The model is verified by comparison with the experimental results by our test and that in the literature at different strain rates.
Conclusions:
It shows that calculated results of the constitutive model agree well with the experiment data at extremely low to high strain rates, which is useful for the description of the heterogeneous, nonlinear viscoelastic, relaxation and creep mechanical response of skin under compression.
More Related Videos
Related Concept Videos
Residual Stresses in Bending
Plastic Behavior
Hooke's Law
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Elastic Strain Energy for Shearing Stresses
Elasticity in Concrete

