Embossed Sheet Steel Structure for High Strength at Low Weight
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Solution Overview
Problem
Existing sheet steel solutions struggle to balance strength and weight, as thicker sheets provide more strength but are heavier, and techniques like forming beads or cutting holes can be inefficient and costly.
Innovation Solution
An embossed sheet steel design featuring alternating patterns of indentations on both sides, mimicking the strength of a thicker sheet while maintaining the weight of a thinner sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness of sheet steel is increased to improve strength, then the strength increases, but the weight increases
Solution Approach 1:
The patent applies dimensionality change by forming three-dimensional embossed patterns (beads, ridges, and valleys) on the two-dimensional sheet steel surface. These geometric features create additional structural dimensions that provide strength without increasing the base thickness or weight of the sheet. The embossed patterns transform flat steel into a textured, multi-level structure that resists bending and deformation more effectively.
Solution Approach 2:
The patent utilizes curvature by forming rounded beads and ridges through embossing processes. These curved geometric features distribute stress more effectively across the sheet steel surface compared to flat configurations. The spherical or cylindrical cross-sections of the beads create natural stress distribution paths that enhance structural strength while maintaining lightweight characteristics.
2Strength
If beads are formed along edges to strengthen sheet steel in a specific direction, then strength in that direction improves, but strength in other directions remains limited
Solution Approach 1:
The patent applies segmentation by dividing the sheet steel surface into multiple discrete embossed features (beads, ridges, and valleys) arranged in systematic patterns. Rather than a single continuous reinforcement element, multiple segmented features are distributed across the surface, each providing localized strength that collectively enhances multi-directional structural performance.
Solution Approach 2:
The embossed patterns serve multiple functions simultaneously: they provide strength in multiple directions, create stiffness against bending, and can be configured to address different loading conditions. The same embossed feature structure that strengthens against transverse loading also provides resistance to longitudinal forces and out-of-plane deformation.
3Weight of stationary object
If material is removed from sheet steel to reduce weight, then weight decreases, but strength is weakened
Solution Approach 1:
The patent applies parameter changes by modifying the geometric parameters of the sheet steel surface through embossing. The process changes the surface topology from flat to three-dimensional, creating beads and ridges with specific heights, radii, and spacing. These parameter modifications fundamentally alter the structural behavior and strength characteristics without changing the material composition or removing material.
Data Source
AI summary
An embossed piece of sheet steel including a piece of sheet steel having a first side and an opposing second side, a first plurality of indentations formed on the first side of the piece of sheet steel and a second plurality of indentations formed on the opposing second side of the piece of sheet steel. The first plurality of indentations is formed in a pattern along equally spaced parallel rows and equally spaced perpendicular intersecting columns. The indentations of the first plurality of indentations are positioned along each row at alternating intersections with the columns and each adjacent row having the indentations at alternating intersections offset by one column. The second plurality of indentations is formed in a pattern along equally spaced parallel rows and equally spaced perpendicular intersecting columns. The indentations of the second plurality of indentations are positioned along each row at alternating intersections with the columns intermediate the indentations of the first plurality of indentations and each adjacent row having the indentations offset by one column.