Abstract
In this study the effect of strain rate in tension on two different types of thin-ply pseudo-ductile laminates is reported. These comprised Unidirectional (UD) and quasi-isotropic (QI) hybrids made from low strain thin-ply carbon/epoxy and high strain glass/epoxy prepreg and all-carbon laminates made from thin-ply [±ϴ/0]s laminates referred to as angle-ply (AP) composites. Laminates were designed and subjected to a range of cross-head speeds from 2 mm/min (0.0003 s −1 ) to 10 m/s (100 s −1 ). The designed laminates were made from single or hybrids of low strain and high strain unidirectional prepregs, i.e. thin-ply Carbon/epoxy and Glass/epoxy, respectively. Dynamic stress-strain plots and details of the damage mechanisms were obtained for each sample and compared with the quasi-static test results. The investigated thin-ply UD and QI hybrid composite laminates showed excellent pseudo-ductility at different strain rates, whereas the AP laminates were strain rate dependent and pseudo-ductility decreased with increasing strain rate.
| Language | English |
|---|---|
| Pages | 365-376 |
| Number of pages | 12 |
| Journal | Composite Structures |
| Volume | 215 |
| Early online date | 19 Feb 2019 |
| DOIs | |
| Publication status | Published - 1 May 2019 |
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Keywords
- angle-ply
- high strain rate
- hybrid
- pseudo-ductility
- quasi-isotropic
- thin-ply
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The high strain rate tension behaviour of pseudo-ductile high performance thin ply composites. / Fotouhi, Mohamad; Fuller, Jonathan; Longana, Marco; Jalalvand, Meisam; Wisnom, Michael R.
In: Composite Structures, Vol. 215, 01.05.2019, p. 365-376.Research output: Contribution to journal › Article
TY - JOUR
T1 - The high strain rate tension behaviour of pseudo-ductile high performance thin ply composites
AU - Fotouhi, Mohamad
AU - Fuller, Jonathan
AU - Longana, Marco
AU - Jalalvand, Meisam
AU - Wisnom, Michael R.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - In this study the effect of strain rate in tension on two different types of thin-ply pseudo-ductile laminates is reported. These comprised Unidirectional (UD) and quasi-isotropic (QI) hybrids made from low strain thin-ply carbon/epoxy and high strain glass/epoxy prepreg and all-carbon laminates made from thin-ply [±ϴ/0]s laminates referred to as angle-ply (AP) composites. Laminates were designed and subjected to a range of cross-head speeds from 2 mm/min (0.0003 s −1 ) to 10 m/s (100 s −1 ). The designed laminates were made from single or hybrids of low strain and high strain unidirectional prepregs, i.e. thin-ply Carbon/epoxy and Glass/epoxy, respectively. Dynamic stress-strain plots and details of the damage mechanisms were obtained for each sample and compared with the quasi-static test results. The investigated thin-ply UD and QI hybrid composite laminates showed excellent pseudo-ductility at different strain rates, whereas the AP laminates were strain rate dependent and pseudo-ductility decreased with increasing strain rate.
AB - In this study the effect of strain rate in tension on two different types of thin-ply pseudo-ductile laminates is reported. These comprised Unidirectional (UD) and quasi-isotropic (QI) hybrids made from low strain thin-ply carbon/epoxy and high strain glass/epoxy prepreg and all-carbon laminates made from thin-ply [±ϴ/0]s laminates referred to as angle-ply (AP) composites. Laminates were designed and subjected to a range of cross-head speeds from 2 mm/min (0.0003 s −1 ) to 10 m/s (100 s −1 ). The designed laminates were made from single or hybrids of low strain and high strain unidirectional prepregs, i.e. thin-ply Carbon/epoxy and Glass/epoxy, respectively. Dynamic stress-strain plots and details of the damage mechanisms were obtained for each sample and compared with the quasi-static test results. The investigated thin-ply UD and QI hybrid composite laminates showed excellent pseudo-ductility at different strain rates, whereas the AP laminates were strain rate dependent and pseudo-ductility decreased with increasing strain rate.
KW - angle-ply
KW - high strain rate
KW - hybrid
KW - pseudo-ductility
KW - quasi-isotropic
KW - thin-ply
UR - http://www.scopus.com/inward/record.url?scp=85061936575&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2019.02.068
DO - 10.1016/j.compstruct.2019.02.068
M3 - Article
VL - 215
SP - 365
EP - 376
JO - Composite Structures
T2 - Composite Structures
JF - Composite Structures
SN - 0263-8223
ER -