PSI - Issue 41

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 il l li t . i ir t. tr t r l I t rit r i ( )

www.elsevier.com/locate/procedia . l i r. /l t / r i

ScienceDirect

Procedia Structural Integrity 41 (2022) 646–655

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. Abstract The presented article discusses the fracture behavior of two short fiber reinforced polymers (SFRP): a polyphthalamide (PPA) with glass fiber inclusions of 33% (GF33) and a polyphenylene sulfide (PPS) with glass fiber inclusions of 40% (GF40). The behavior of these two materials was characterized as brittle and highly orthotropic in accordance with the tensile strength tests in Micota, Isaincu, and Marşavina 2021 . The influence of the fiber orientation on the fracture toughness and crack propagation path is assessed by means of physical testing and numerical simulations. Mode I and mode II fracture toughness were determined on edge crack triangular (ECT) specimens Aliha, Hosseinpour, and Ayatollahi 2013 subjected to three-point bending. Symmetrical loading was applied for mode I fracture toughness and asymmetrical loading for mode II. Three fiber orientations of 0°, 45° and 90° were considered. The numerical simulations were performed using CASCA and FRANC2D. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. Keywords: Fracture toughness; polyphthalamide; polyphenylene sulfide; three point bending; FRANC2D. 1. Introduction The current global context points towards pushing the automotive market to ask for more performance at lower cost and less weight from its products. These harsh requirements are transferred to materials manufacturing of automotive products. High performance engineering polymers with glass fiber reinforcement, similar to the ones approached in Abstract r t rti l i t fr t r i r f t rt fi r r i f r l r ( ): l t l i ( ) it l fi r i l i f ( ) l l lfi ( ) it l fi r i l i f ( ). i r f t t t ri l r t ri rittl i l rt tr i i r it t t il tr t t t i i t , I i , r i . i fl f t fi r ri t ti t fr t r t r r ti t i f i l t ti ri l i l ti . I II fr t r t r t r i r tri l r ( ) i li , i r, t ll i j t t t r - i t i . tri l l i li f r I fr t r t tri l l i f r II. r fi r ri t ti f 0°, 45° and r i r . ri l i l ti r rf r i . t ors. Published by ELSEVIER B.V. i i e rti l r t - - li ( tt :// r ti . r /li / - - / . ) r-r i r r i ilit f t r t t it r . : r t r t ; l t l i ; l l lfi ; t r i t i ; . . i t l l t t i t t i t t ti t t t l t l i t it t . i t t t t i l t i t ti t . i i i l it l i i t, i il t t i 2nd Mediterranean Conference on Fracture and Structural Integrity On The Fracture Toughness Of PPS And PPA Reinforced With Glass Fiber Alexandru Isaincu a, *, Dan Micota b , Liviu Mar ş avina b a Politehnica University of Timișoara, Department of Steel Structures and Structural Mechanics, Ioan Curea, No. 1, Timișoara 300223, Romania b Politehnica University of Timișoara, Department of Mechanics and Strength of Materials, Victoria Square, No. 2, Timișoara 300 222, Romania Glass Fiber , a lit i i it f i i , t t f t l t t t t l i , I , . , i i , i b lit i i it f i i , t t f i t t f t i l , i t i , . , i i , i

* Corresponding author. Tel.: +40-720-537-935. E-mail address: alexandru.isaincu@student.upt.ro i t r. l.: - - - . E-mail address: alexandru.isaincu@student.upt.ro rr

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the MedFract2Guest Editors. 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. i i rti l r t - - li ( tt :// r ti . r /li / - - / . ) r-r i r r i ilit f t r t t it r .

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. 10.1016/j.prostr.2022.05.073