Automated method to determine composite material constituent properties
First Claim
Patent Images
1. A method comprising:
- entering a set of composite material properties into a computer memory, including;
a composite modulus in a first direction;
a composite modulus in a second direction normal to the first direction;
a composite shear modulus in a plane that includes the first direction and the second direction;
a composite Poisson ratio in a plane that includes the first direction and the second direction;
entering a composite microstructure into the computer;
processing the set of composite material properties and the composite microstructure to determine adjusted material properties of all constituents of the composite material, wherein a set of fixed constituent property constraints are utilized to obtain the adjusted material properties.
3 Assignments
0 Petitions
Accused Products
Abstract
A method of determining in situ composite material constituent properties is provided. In one example computer software is provided that automatically determines adjusted material properties or in situ properties of each constituent of a composite material. Methods shown ensure that a finite element model will consistently predict material behavior not just at one desired stress/strain state, but in all simulated states.
-
Citations
6 Claims
-
1. A method comprising:
-
entering a set of composite material properties into a computer memory, including; a composite modulus in a first direction; a composite modulus in a second direction normal to the first direction; a composite shear modulus in a plane that includes the first direction and the second direction; a composite Poisson ratio in a plane that includes the first direction and the second direction; entering a composite microstructure into the computer; processing the set of composite material properties and the composite microstructure to determine adjusted material properties of all constituents of the composite material, wherein a set of fixed constituent property constraints are utilized to obtain the adjusted material properties. - View Dependent Claims (2)
-
-
3. A computer system, comprising:
-
a processor; a memory in communication with the processor, wherein the memory includes instructions stored thereon, the instructions when executed operable to; accept a set of user input carbon fiber/polymer matrix composite material properties, including; a composite modulus in a first direction; a composite modulus in a second direction normal to the first direction; a composite shear modulus in a plane that includes the first direction and the second direction; a composite Poisson ratio in a plane that includes the first direction and the second direction; accept a user input carbon fiber/polymer matrix microstructure; determine adjusted material properties of one or more of the carbon fiber constituents, wherein a set of fixed constituent property constraints are utilized to obtain the adjusted material properties; and determine adjusted properties of one or more polymer matrix constituents, wherein the set of fixed constituent property constraints are utilized to obtain the adjusted polymer matrix properties. - View Dependent Claims (4, 5, 6)
-
Specification