Publications by authors named "Daniel J Cruz"
A Miniaturized Device Coupled with Digital Image Correlation for Mechanical Testing.
Micromachines (Basel)
November 2022
Miniaturized mechanical testing based on small sample testing technology is a powerful technique to characterize the mechanical properties of different materials, and it is being used in different application fields. However, the small size of the specimens poses several challenges because the results are highly sensitive to measurement accuracy and the corresponding mechanical properties can change substantially due to the so-called specimen size effect. In this work, a novel testing device based on miniaturized specimens is presented.
View Article and Find Full Text PDFThis article details the ESAFORM Benchmark 2021. The deep drawing cup of a 1 mm thick, AA 6016-T4 sheet with a strong cube texture was simulated by 11 teams relying on phenomenological or crystal plasticity approaches, using commercial or self-developed Finite Element (FE) codes, with solid, continuum or classical shell elements and different contact models. The material characterization (tensile tests, biaxial tensile tests, monotonic and reverse shear tests, EBSD measurements) and the cup forming steps were performed with care (redundancy of measurements).
View Article and Find Full Text PDFArticle Synopsis
- Hair cortex comedo was initially described in a study analyzing two cases with keratinous plugs similar to hair cortex, and a new series has identified 34 cases.
- The collected data indicate that these lesions predominantly occur in females (ratio of 1:1.4), average patient age is 28.8, and the lesions are typically solitary, appearing as blue subcutaneous nodules mainly on the head, neck, or trunk.
- Histological examination highlighted features like compact laminated corneocytes, entrapped melanin, and a surrounding granulomatous response, suggesting these lesions arise from specific hair follicle cells, distinguishing them from previously thought similar conditions.