The effect of the specimen (or component) thickness has been shown to have a significant effect on closure behaviour and this seems to be related to the relative size of the plastic zone. Real cracks are inherently three-dimensional; plane stress-like behaviour is found close to the region where the crack front intersects the free surface, whereas most of the crack front will experience somethi...

High-temperature mechanical tests coupled with Digital Image Correlation (DIC) on ceramics which exhibit rather low level of strain require to overcome extreme experimental conditions that usually can reduce significantly measurement accuracy. Thermal resistance speckle pattern, black body radiation and heat haze are three main concerns, should thus be taken into account while designing a high-...

The aim of this paper focused on obtaining the optimum cruciform geometry of reinforced magnetorheological elastomers (MRE) to perform homogeneous equibiaxial deformation tests, by using optimization algorithms and Finite Element Method (FEM) simulations. To validate the proposed specimen geometry, a digital image correlation (DIC) system was used to compare experimental result measurements wit...

Computer-aided engineering systems rely on constitutive models and their parameters to describe the material behaviour. The calibration of more elaborated with a larger number becomes very time cost consuming. development image-based technology has enhanced interest in inverse identification methods, which, when coupled full-field measurements, have potential reduce experimental tests required ...

The development of piezospectroscopic (PS) composites has enabled the creation of a non-destructive evaluation (NDE) technique which integrates piezospectroscopy, digital image correlation (DIC) and analytical multi-scale mechanics to map the elastic modulus of a coated material. The measured elastic modulus was represented as a normal distribution with a mean value (32.2 GPa) which is within 8...

This paper introduces a new test configuration for the determination of panel shear properties in structural sizes. original has been successfully applied to calculate beech plywood. A numerical model developed evaluate influence such novel setup comparison common standard. The research includes mechanical characterization total 36 samples using Digital Image Correlation (DIC) measure plane dis...

An experimental method that can quantify relative slip was developed using digital image correlation (DIC) in order to evaluate the sliding portion. The bridge-type test setup designed establish fretting contact condition. displacements between surfaces were determined by DIC methods. Based on evolution and distribution of slip, transitions from gross partial surface found throughout all tests....

Abstract For microelectronic components and systems, reliability under thermomechanical stress is of critical importance relies on accurate mapping surface hotspots temperature gradients. One method non-invasively acquiring this data through infrared (IR) thermography. However, IR thermography often limited by the typically low resolution such cameras. Additionally, finish preparations required...

The ballistic perforation resistance of 50 mm thick concrete slabs impacted by 20 diameter ogive-nose steel projectiles is investigated experimentally and numerically. Three commercially produced concretes with nominal unconfined compressive strengths 35, 75 110 MPa were used to cast material test specimens slabs. After curing, impact tests carried out determine the limit curve velocity for eac...

The robustness and computational efficiency of digital image correlation (DIC) are two key influencing factors for displacement field measurement applications. Especially when the speckle images contaminated by salt-and-pepper noise, it is difficult to obtain reliable results using traditional DIC methods. Digital Spearman’s Rho Correlation (DISRC), as a new technique, has certain but incurs hi...