Cumulative microdamage model to describe the hysteresis of living tissue

Chu, Billie Mae; Blatz, P. J.

doi:10.1007/bf02584207

Cited by 28 publications

(9 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Visco-elasticity means that the stress-strain relation of the solid material is time dependent (Li et al, 1995). Collagenous tissue, such as found in the annulus, shows time-dependent deformation probably as a consequence of the release of hydrogen and salt-like bonds between fibrils and matrix (Chu and Blatz, 1972). Poro-elasticity implies that fluid flow, into or out of the disc, plays a role in the mechanical behavior of the disc (Huyghe et al, 2003;Schroeder et al, 2006;van der Veen et al, 2006;Koeller et al, 1984).…”

Section: Introductionmentioning

confidence: 98%

Contribution of verftebral bodies, endplates, and intervertebral discs to the compression creep of spinal motion segments

Veen

Mullender

Kingma

et al. 2008

Journal of Biomechanics

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 98%

Contribution of verftebral bodies, endplates, and intervertebral discs to the compression creep of spinal motion segments

Veen

Mullender

Kingma

et al. 2008

Journal of Biomechanics

View full text Add to dashboard Cite

“…Furthermore, the accumulation increased more rapidly as the rate of repetition increased. The documentation of a sustained or increasing level of viscous strain is of consequence because such strain is thought to produce the microdamage that eventually leads to tenosynovitis of the finger flexor and extensor tendons (Armstrong, Castelli, Evans, and Diaz-Perez, 1984;Chu and Blatz, 1972;Goldstein, 1981;Rowe, 1987). Some have postulated that this microdamage involves a failure of the molecular links between the tissue matrix and filler material (e.g., Chu and Blatz, 1972).…”

Section: Introductionmentioning

confidence: 98%

Repetitive Motion Disorders: The Design of Optimal Rate-Rest Profiles

et al. 1993

View full text Add to dashboard Cite

Repetitive motion disorders of the upper extremities are the primary cause of lost time in hand-intensive industries. Typical remedies include the introduction of job aids and the redesign of the job. An alternative approach is considered here. Procedures are developed that can be used to determine the parameters of a job (e.g., the rate of work and the number and duration of the rest breaks) that minimize repetitive motion disorders and maximize productivity. It is shown that in theory the job parameters can be set so that one can achieve not only a decrease in repetitive motion disorders but also an increase in productivity. The application of the procedures to an actual manufacturing job requiring high-repetitive, high-force hand motions is discussed in detail.

show abstract

“…The first damage model of soft tissues can be traced back to the 1970s. 21 More than 3 decades ago, Simo 22 presented a damage model for finite deformations. It was basically based on the multiplicative decomposition of the deformation gradient into a isochoric (volume-preserving) and a volumetric part in which damage only affects the former.…”

Section: Introductionmentioning

confidence: 99%

Computational predictions of damage propagation preceding dissection of ascending thoracic aortic aneurysms

Mousavi

Farzaneh

2017

Numer Methods Biomed Eng

View full text Add to dashboard Cite

Dissections of ascending thoracic aortic aneurysms (ATAAs) cause significant morbidity and mortality worldwide. They occur when a tear in the intima-media of the aorta permits the penetration of the blood and the subsequent delamination and separation of the wall in 2 layers, forming a false channel. To predict computationally the risk of tear formation, stress analyses should be performed layer-specifically and they should consider internal or residual stresses that exist in the tissue. In the present paper, we propose a novel layer-specific damage model based on the constrained mixture theory, which intrinsically takes into account these internal stresses and can predict appropriately the tear formation. The model is implemented in finite-element commercial software Abaqus coupled with user material subroutine. Its capability is tested by applying it to the simulation of different exemplary situations, going from in vitro bulge inflation experiments on aortic samples to in vivo overpressurizing of patient-specific ATAAs. The simulations reveal that damage correctly starts from the intimal layer (luminal side) and propagates across the media as a tear but never hits the adventitia. This scenario is typically the first stage of development of an acute dissection, which is predicted for pressures of about 2.5 times the diastolic pressure by the model after calibrating the parameters against experimental data performed on collected ATAA samples. Further validations on a larger cohort of patients should hopefully confirm the potential of the model in predicting patient-specific damage evolution and possible risk of dissection during aneurysm growth for clinical applications.

show abstract

Cumulative microdamage model to describe the hysteresis of living tissue

Cited by 28 publications

References 7 publications

Contribution of verftebral bodies, endplates, and intervertebral discs to the compression creep of spinal motion segments

Contribution of verftebral bodies, endplates, and intervertebral discs to the compression creep of spinal motion segments

Repetitive Motion Disorders: The Design of Optimal Rate-Rest Profiles

Computational predictions of damage propagation preceding dissection of ascending thoracic aortic aneurysms

Contact Info

Product

Resources

About