Fiber-Reinforced Resin Pillar with Metal Plate for Side Impact
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Solution Overview
Problem
Existing vehicle body pillar structures made of fiber-reinforced resin composites face challenges in preventing breakage during side collisions while effectively absorbing collision energy.
Innovation Solution
A vehicle body pillar structure comprising two or more tubular members made of fiber-reinforced resin and a metal plate disposed between them, extending along the vehicle body height and width directions, to enhance strength and energy absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a fiber-reinforced resin composite pillar is used for weight reduction, then vehicle body weight is reduced, but the pillar may break during side collisions and fail to effectively absorb collision energy
Solution Approach 1:
The invention uses a composite structure combining fiber-reinforced resin tubular members with metal plates. The fiber-reinforced resin provides weight reduction while the metal plates provide high strength and collision energy absorption. This composite material approach resolves the contradiction by integrating materials with complementary properties to achieve both weight reduction and adequate collision resistance.
Solution Approach 2:
The invention merges fiber-reinforced resin tubular members with metal plates into a unified pillar structure. The metal plates are positioned between the tubular members to work together in absorbing collision energy. This combining of different material systems allows the structure to achieve both the weight benefits of fiber-reinforced resin and the strength benefits of metal components.
2Reliability
If the pillar structure is designed to prevent breakage, then reliability in side collisions is improved, but device complexity increases due to multiple components
Solution Approach 1:
The invention segments the pillar into multiple functional components: fiber-reinforced resin tubular members and metal plates. Each segment has a specific function - the tubular members provide structural form and some energy absorption, while the metal plates provide high-strength collision resistance. This segmentation allows the system to achieve high reliability through functional specialization while managing complexity through modular design.
Solution Approach 2:
The metal plates serve multiple functions: they strengthen the pillar structure, absorb collision energy, and prevent breakage of the fiber-reinforced resin components. By making the metal plates multi-functional, the invention reduces the need for additional specialized components, thereby managing structural complexity while achieving high reliability.
Data Source
AI summary
A vehicle body pillar structure using a fiber-reinforced resin composite includes two or more tubular members and a metal plate. The two or more tubular members are made of a fiber-reinforced resin and have respective axes along a vehicle body height direction. The metal plate is disposed between two of the two or more tubular members arranged in a vehicle body front-rear direction, and extends along the vehicle body height direction and a vehicle width direction.