000150412 001__ 150412
000150412 005__ 20251017144639.0
000150412 0247_ $$2doi$$a10.1016/j.mechmat.2025.105239
000150412 0248_ $$2sideral$$a142552
000150412 037__ $$aART-2025-142552
000150412 041__ $$aeng
000150412 100__ $$aAparici-Gil, Alejandro
000150412 245__ $$aExploring mechanical damage in fascia: Experiments and advanced constitutive modeling approaches
000150412 260__ $$c2025
000150412 5060_ $$aAccess copy available to the general public$$fUnrestricted
000150412 5203_ $$aBiological tissues exhibit complex structures that necessitate mechanical models incorporating details of their key components and the physical processes occurring within the material. Our objective is to enhance the understanding of damage mechanisms in fibered tissues through mechanical testing. This includes conducting uniaxial tensile tests on fascia beyond physiological stretch limits and developing two constitutive models to describe damage and rupture. These models integrate both phenomenological and microstructural perspectives.
Two perpendicular directions, corresponding to the two families of collagen fibers, were compared: the longitudinal direction, characterized by greater stiffness, and the transverse direction. The mean Cauchy rupture stress (
) was reported as 16.67 for the longitudinal direction and 4.76 MPa for the transverse direction, with a significant difference observed between them (-value 0.05). Similarly, a significant difference in stored strain energy was found between the two directions (-value 0.05) between directions, being in longitudinal equal to 1.33 and 0.49 in transversal one. However, rupture stretches () did not exhibit a significant difference (-value
0.05) with values of 1.17 and 1.22 for the longitudinal and transverse directions, respectively.
In this study, a hyperelastic constitutive model for fascia was modified to incorporate damage effects into the strain energy function. Additionally, an extended version of a microstructural damage model was developed to effectively replicate the experimental data. The proposed damage models successfully captured the stress–strain behavior and accurately represented the damage process. The coefficient of determination
for the fitted data ranged from 0.616 to 0.973, except for Sample IV, which exhibited an value of 0.251 when using the phenomenological model. In all cases, the microstructural model provided a more accurate fit compared to the phenomenological model, with values ranging from 0.748 to 0.927.
000150412 536__ $$9nfo:eu-repo/grantAgreement/ES/AEI/PID2022-140219OB-I00$$9info:eu-repo/grantAgreement/ES/DGA-FSE/T24-20R
000150412 540__ $$9info:eu-repo/semantics/embargoedAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000150412 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000150412 700__ $$0(orcid)0000-0002-8133-2124$$aPérez, Marta M.$$uUniversidad de Zaragoza
000150412 700__ $$0(orcid)0000-0002-0664-5024$$aPeña, Estefanía$$uUniversidad de Zaragoza
000150412 7102_ $$11001$$2025$$aUniversidad de Zaragoza$$bDpto. Anatom.,Embri.Genét.Ani.$$cÁrea Anatom.Anatom.Patológ.Com
000150412 7102_ $$15004$$2605$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Mec.Med.Cont. y Teor.Est.
000150412 773__ $$g202 (2025), 105239 [13 pp.]$$pMech. mater.$$tMECHANICS OF MATERIALS$$x0167-6636
000150412 8564_ $$s3054338$$uhttps://zaguan.unizar.es/record/150412/files/texto_completo.pdf$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-01-08
000150412 8564_ $$s2596617$$uhttps://zaguan.unizar.es/record/150412/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-01-08
000150412 909CO $$ooai:zaguan.unizar.es:150412$$particulos$$pdriver
000150412 951__ $$a2025-10-17-14:31:03
000150412 980__ $$aARTICLE