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Dan Mihai Constantinescu

Researcher at Politehnica University of Bucharest

Publications -  83
Citations -  796

Dan Mihai Constantinescu is an academic researcher from Politehnica University of Bucharest. The author has contributed to research in topics: Fracture mechanics & Finite element method. The author has an hindex of 14, co-authored 83 publications receiving 601 citations. Previous affiliations of Dan Mihai Constantinescu include Virginia Tech & Politehnica University of Timișoara.

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Refinements on fracture toughness of PUR foams

Liviu Marsavina, +5 more
- 01 Oct 2014 - 
TL;DR: In this article, the authors presented the polyurethane foam fracture toughness results obtained for different foam densities and two types of specimens were used for determining fracture toughness in modes I, II and a mixed one, and the size effect, loading speed and loading direction were investigated.
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Shear and mode II fracture of PUR foams

Liviu Marsavina, +6 more
- 01 Dec 2015 - 
TL;DR: In this article, a micromechanical model is proposed to estimate fracture toughness based on the tensile strength of the solid material and the topology of the cellular structure of polyurethane foams.
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Experimental and numerical crack paths in PUR foams

Liviu Marsavina, +4 more
- 01 Nov 2016 - 
TL;DR: In this article, the behavior of closed cell rigid PUR foams under mixed mode loading was investigated using asymmetric semi-circular bend (ASCB) and asymmetric four-point bend (AFPB) specimens.
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Investigation of the dynamic mechanical behavior of Polyetheretherketone (PEEK) in the high stress tensile regime

Michael Berer, +4 more
- 01 Nov 2014 - 
TL;DR: In this paper, two types of PEEK (annealed and untreated) were investigated and two load ratios, R, were used (0.1 and 0.5), during the fatigue tests extensometer strain, load and surface temperature were recorded and a quantitative hysteresis loop analysis with calculated secant modulus and dynamic modulus was performed.
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Latent heat nano composite building materials

M. Constantinescu, +6 more
- 01 Dec 2010 - 
TL;DR: In this article, phase change material (PCM)-epoxy composites are used as building materials depending on phase change temperature and latent heat using the optimal geometry for each application, and some nano-composite materials were prepared by mixing a PCM with large latent heat with epoxy resin and Al powder.