On the crack path under mixed mode loading on PUR foams
In this paper are presented the crack initiation angles obtained in polyurethane (PUR) foams under mixed mode loading. Closed cell rigid PUR foams having three different densities 100, 145, and 300 kg/m3 were investigated. Experiments were performed using Asymmetric Semi-Circular Bend and Single E...
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Gruppo Italiano Frattura
2015-10-01
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| Series: | Frattura ed Integrità Strutturale |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_43.pdf |
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doaj-ef40474c570b42ab8f08d6eaa1ec00aa2020-11-25T00:52:43ZengGruppo Italiano FratturaFrattura ed Integrità Strutturale1971-89931971-89932015-10-0193438739610.3221/IGF-ESIS.34.43On the crack path under mixed mode loading on PUR foamsL. Marsavina0E. Linul1T. Voiconi2D. M. Constantinescu3D. A. Apostol4University Politehnica Timisoara, RomaniaUniversity Politehnica Timisoara, RomaniaUniversity Politehnica Timisoara, RomaniaUniversity Politehnica Bucharest, RomaniaUniversity Politehnica Bucharest, RomaniaIn this paper are presented the crack initiation angles obtained in polyurethane (PUR) foams under mixed mode loading. Closed cell rigid PUR foams having three different densities 100, 145, and 300 kg/m3 were investigated. Experiments were performed using Asymmetric Semi-Circular Bend and Single Edge Crack specimens. The obtained crack initiation values were compared with four fracture criteria to introduce: Maximum Tensile Stress, Strain Energy Density, Maximum Energy Release Rate and Equivalent Stress Intensity Factor, and a good agreement was observed. This allow to conclude that the theoretical fracture criteria developed for solid material could be used with success to predict the crack propagation angles in cellular materials like PUR foamshttp://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_43.pdfPUR foamsCrack pathMixed mode |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
L. Marsavina E. Linul T. Voiconi D. M. Constantinescu D. A. Apostol |
| spellingShingle |
L. Marsavina E. Linul T. Voiconi D. M. Constantinescu D. A. Apostol On the crack path under mixed mode loading on PUR foams Frattura ed Integrità Strutturale PUR foams Crack path Mixed mode |
| author_facet |
L. Marsavina E. Linul T. Voiconi D. M. Constantinescu D. A. Apostol |
| author_sort |
L. Marsavina |
| title |
On the crack path under mixed mode loading on PUR foams |
| title_short |
On the crack path under mixed mode loading on PUR foams |
| title_full |
On the crack path under mixed mode loading on PUR foams |
| title_fullStr |
On the crack path under mixed mode loading on PUR foams |
| title_full_unstemmed |
On the crack path under mixed mode loading on PUR foams |
| title_sort |
on the crack path under mixed mode loading on pur foams |
| publisher |
Gruppo Italiano Frattura |
| series |
Frattura ed Integrità Strutturale |
| issn |
1971-8993 1971-8993 |
| publishDate |
2015-10-01 |
| description |
In this paper are presented the crack initiation angles obtained in polyurethane (PUR) foams under mixed
mode loading. Closed cell rigid PUR foams having three different densities 100, 145, and 300 kg/m3 were investigated.
Experiments were performed using Asymmetric Semi-Circular Bend and Single Edge Crack specimens.
The obtained crack initiation values were compared with four fracture criteria to introduce: Maximum Tensile Stress,
Strain Energy Density, Maximum Energy Release Rate and Equivalent Stress Intensity Factor, and a good agreement was
observed. This allow to conclude that the theoretical fracture criteria developed for solid material could be used with
success to predict the crack propagation angles in cellular materials like PUR foams |
| topic |
PUR foams Crack path Mixed mode |
| url |
http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_43.pdf |
| work_keys_str_mv |
AT lmarsavina onthecrackpathundermixedmodeloadingonpurfoams AT elinul onthecrackpathundermixedmodeloadingonpurfoams AT tvoiconi onthecrackpathundermixedmodeloadingonpurfoams AT dmconstantinescu onthecrackpathundermixedmodeloadingonpurfoams AT daapostol onthecrackpathundermixedmodeloadingonpurfoams |
| _version_ |
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