Details

Autor(en) / Beteiligte

• Marșavina, Liviu
• Linul, Emanoil

Titel

Fracture toughness of rigid polymeric foams: A review

Ist Teil von

• Fatigue & fracture of engineering materials & structures, 2020-11, Vol.43 (11), p.2483-2514

Ort / Verlag

Oxford: Wiley Subscription Services, Inc

Erscheinungsjahr

2020

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• 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 polymeric foam‐based composite structures. 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 fracture toughness by reinforcing of polymeric foams.