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Fracture Toughness of Rigid Polymeric Foams. A review
  • liviu marsavina,
  • Emanoil Linul
liviu marsavina
Universitatea Politehnica din Timisoara
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Emanoil Linul
POLITEHNICA University of Timisoara
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Abstract

Polymeric foams have good capacity of absorbing energy in compression, but are brittle in tension. Linear Elastic fracture Mechanics is successfully applied to assess the integrity of structures with polymeric foams. The fracture toughness represents an important parameter. The different approaches to estimate the fracture toughness of polymeric foams are reviewed, analytical and numerical micromechanical models and experimental investigations. Focus is given on the parameters influencing the fracture toughness of polymeric foams like specimen type, solid material, density, loading speed, size effect and temperature. Data on mixed mode loading and dynamic fracture toughness are also presented. The last part of the paper presents some results to increase the fractured toughness by reinforcing of polymeric foams.

Peer review status:ACCEPTED

24 Apr 2020Submitted to Fatigue & Fracture of Engineering Materials & Structures
25 Apr 2020Submission Checks Completed
25 Apr 2020Assigned to Editor
29 Apr 2020Reviewer(s) Assigned
23 May 2020Review(s) Completed, Editorial Evaluation Pending
25 Jun 2020Editorial Decision: Revise Minor
21 Jul 20201st Revision Received
22 Jul 2020Submission Checks Completed
22 Jul 2020Assigned to Editor
22 Jul 2020Reviewer(s) Assigned
02 Aug 2020Review(s) Completed, Editorial Evaluation Pending
02 Aug 2020Editorial Decision: Accept