Pierre C Croizer

Title: Innovations by Pierre C Croizer in Elancourt, France

Introduction

Pierre C Croizer, an inventive mind based in Elancourt, France, has contributed significantly to the fields of photoelasticity and explosive technology. With two patents to his name, he has developed methods and devices that enhance our understanding of stress and deformation in materials, as well as advancements in penetration bomb designs.

Latest Patents

Croizer's latest innovations include the following patents:

1. **Photoelasticity determination of a deformation or stress field**: This method involves a comprehensive approach to examining stress or strain fields. It starts with forming a two-dimensional image of a test piece that displays isochromatic fringes, with each pixel's gray level recorded as a digital value. The process includes determining the main stresses at each pixel's isoclinals, storing the orientation angles, and analyzing the brightness variation along specific lines through the test piece. Using finite differences and integration, representative values of the main stresses are computed, resulting from both the digital values and the derived computations. Essential components of this method comprise a polarizer, analyzer, imaging system, and computer.

2. **Stepped body penetration bomb**: This invention features a robust body that houses an explosive composition, designed for optimal efficiency upon detonation. The structure includes a rear portion with high explosive content, an intermediate frustoconical portion for transferring kinetic energy, and a front section that acts as a penetrator prior to firing. The careful distribution of explosive materials enhances the performance of the bomb.

Career Highlights

Pierre C Croizer is affiliated with Matra, a company known for its innovative contributions to technology and engineering. His work primarily focuses on applying scientific principles to create effective and accurate solutions in his field.

Collaborations

Throughout his career, Croizer has worked closely with Philippe Dessendier, leveraging their combined expertise to push the boundaries of invention and develop products that meet complex engineering challenges.

Conclusion

With a keen understanding of material properties and explosive dynamics, Pierre C Croizer's contributions through his patents signify a substantial advancement in technology. His innovations not only demonstrate technical proficiency but also underscore the critical role inventors play in shaping the future of engineering and safety.