Locally resolved hysteresis measurement of advanced glass-mat thermoplastic composites

Renz, Rainer; Szymikowski, Rafal

doi:10.1016/j.ijfatigue.2009.02.022

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…Furthermore, epoxy generally underlines higher capabilities under cyclic loading, which is due to void content of polyurethane. fatigue performance of FRP is dominated by degradation effects rather than by local crack propagation, the exclusive determination of the characteristic values, i. e., S-N curve, does not constitute a sufficient measure [5,6]. Therefore different approaches of nondestructive testing for determining and describing the fatigue behavior in terms of damage evaluation have been investigated, e. g., acoustic emission, hysteresis and electrical resistance measurements [6,7].…”

mentioning

confidence: 99%

Comparative characterization of quasi-static and cyclic deformation behavior of glass fiber-reinforced polyurethane (GFR-PU) and epoxy (GFR-EP)

Huelsbusch¹,

Jamrozy²,

Frieling³

et al. 2017

Materials Testing

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123 Production-and microstructure-based fatigue assessment of metallic AISI 304/430 multilayer materials produced by hot pack rolling B. Mitevski, S. Weiß and A. Fischer 130 In-situ tensile testing of notched poly-and oligocrystalline 316L wires 136 Effect of processing conditions on the structure, electrical and mechanical properties of melt mixed high density polyethylene/multi-walled CNT composites in compression molding S. Gach, A. Schwedt, S. Olschok, U. Reisgen and J. Mayer 148 Confirmation of tensile residual stress reduction in electron beam welding using low transformation temperature materials (LTT) as localized metallurgical injection-Part 1: Metallographic analysis T. Srinivasa Rao, G. Madhusudhan Reddy and S. R. Koteswara Rao 155 Investigation on variations in hardness and microstructure of in-process cooled 7075 aluminum alloy friction stir welds M. Farajian, V. Hardenacke, W. Pfeiffer, M. Klaus and J. R. Kornmeier 161 Numerical and experimental investigations on shot-peened high-strength steel by means of hole drilling, X-ray, synchrotron and neutron diffraction analysis G. Sun and Z. Zhou 166 Ultrasonic imaging of particle distribution in SiCp/Al composites 183 Finite element analysis of a vibration test bed frame J. Gülen and M. İskeçeli 188 Removal of methylene blue by using porous carbon adsorbent prepared from carbonized chestnut shell

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mentioning

confidence: 99%

Comparative characterization of quasi-static and cyclic deformation behavior of glass fiber-reinforced polyurethane (GFR-PU) and epoxy (GFR-EP)

Huelsbusch¹,

Jamrozy²,

Frieling³

et al. 2017

Materials Testing

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“…Renz and Szymikowski (2010) performed tensile tests on advanced GMT composites using a laser extensometer on specimens oriented along the longitudinal and transverse fiber directions. The failure strain was in the range of 2.3-2.5% [13].…”

Section: Introductionmentioning

confidence: 97%

Material characteristics of random glass-mat-reinforced thermoplastic under cryogenic thermal cycles

Park¹,

Kim

et al. 2019

Science and Engineering of Composite Materials

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In this study, cryogenic (77 K) to ambient (293 K) thermal shocks are induced to investigate the material behavior and failure characteristic of a random glass-mat-reinforced thermoplastic (GMT). The GMT has numerous advantages such as robust thermal conductivity, good mechanical strength, and good impact resistance. Hence, the GMT serves as an insulation material in liquefied natural gas (LNG) carrier-cargo containment systems (CCSs). In this study, 50, 100, 200, 400, and 800 cryogenic thermal cyclic shocks (77 K to 293 K) were applied to the fabricated GMT samples. The time for each cycle was 40 min, and it took up to approximately four months to completely apply the thermal cyclic shock to the specimens. The elongation, tensile strength, and elastic modulus of the testing samples obtained from the stress–strain relationship and morphologies were investigated in terms of the number of thermal cyclic shocks and strain rate. Finally, explicit formulae were proposed considering the parameters such as material properties and number of cryogenic thermal cycles to predict the material capabilities under arbitrary loading rates and cryogenic thermal cycles. It was confirmed that the degradation and defects increased with an increase in the number of cryogenic thermal cycles.

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“…Since the fatigue performance of FRP is dominated by degradation effects rather than by local crack propagation, the exclusive determination of characteristic values, i.e. S-N curve, doesn't constitute a sufficient measure [4,5]. Therefore, different approaches of non-destructive testing for determining and describing the fatigue behavior in terms of damage development have been investigated, e.g.…”

Section: Introductionmentioning

confidence: 99%

Mechanism-Oriented Characterization of the Fatigue Behavior of Glass Fiber-Reinforced Polyurethane Based on Hysteresis and Temperature Measurements

Huelsbusch

Jamrozy

Mrzljak

et al. 2017

KEM

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In order to optimize resource efficiency, glass fiber-reinforced polymers (GFRP) have been implemented in recent years in a wide range of applications of transport industries. In this context, GFR-epoxy (GFR-EP) is currently being used mainly because of their sufficiently investigated properties and production processes. Polyurethane (PU), however, shows advantages in terms of energy efficiency and damage tolerance. The aim of this study is the characterization of the fatigue behavior of GFR-PU by stepwise exploration of damage development on microscopic level. Therefore, multiple amplitude and constant amplitude tests have been carried out. Hysteresis and temperature measurements were applied in order to investigate the damage processes and correlated with in situ computed tomography (CT) in intermitting tests. The damage development and mechanisms could be characterized and separated. The results confirm known GFRP damage characteristics, whereas also material-specific peculiarities regarding crack development could be revealed.

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Locally resolved hysteresis measurement of advanced glass-mat thermoplastic composites

Cited by 9 publications

References 9 publications

Comparative characterization of quasi-static and cyclic deformation behavior of glass fiber-reinforced polyurethane (GFR-PU) and epoxy (GFR-EP)

Comparative characterization of quasi-static and cyclic deformation behavior of glass fiber-reinforced polyurethane (GFR-PU) and epoxy (GFR-EP)

Material characteristics of random glass-mat-reinforced thermoplastic under cryogenic thermal cycles

Mechanism-Oriented Characterization of the Fatigue Behavior of Glass Fiber-Reinforced Polyurethane Based on Hysteresis and Temperature Measurements

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