Method for making a composite material, composite material and end product

Composite material made from strips comprising longitudinal fibers and a binder or resin, which material comprises a number of layer assemblies one on top of the other, wherein each layer assembly comprises m sets, m being equal to or greater than 2, of parallel strips each extending in a different direction, with

• a. a first group of parallel strips deposited side by side at a predetermined spacing;
• b. on top of the first group of strips, a second group of parallel strips deposited side by side at said predetermined spacing and each extending at an angle different from 180° with respect to the strips of the first group;
• c. a repetition of groups according to b. for all remaining sets of the m sets of strips, wherein the strips deposited as part of each next set of parallel strips are deposited at an angle different from 180° with respect to the strips of all the previous sets;
• d. on top of the previously deposited groups of strips, a next group of parallel strips deposited side by side at said predetermined spacing, in parallel to and immediately adjacent to the strips of the first group;
• e. on top of the previously deposited groups of strips, a next group of parallel strips deposited side by side at said predetermined spacing, in parallel to and immediately adjacent to the strips of the second group;
• f. a repetition of groups according to e. for all remaining sets of the m sets of strips;
• g. a repetition of groups according to d. to f. until a last group of parallel strips is deposited such that all the predetermined spacings are completely occupied by adjacently positioned strips,
• and wherein the first group of parallel strips according to a. of a following layer assembly is deposited below the last group of parallel strips according to g of a previous layer assembly.

End product comprising composite material made from strips comprising longitudinal fibers and a binder or resin, which material comprises a number of layer assemblies one on top of the other,

• wherein each layer assembly comprises m sets, m being equal to or greater than 2, of parallel strips each extending in a different direction, with
• a. a first group of parallel strips deposited side by side at a predetermined spacing;
• b. on top of the first group of strips, a second group of parallel strips deposited side by side at said predetermined spacing and each extending at an angle different from 180° with respect to the strips of the first group;
• c. a repetition of groups according to b. for all remaining sets of the m sets of strips, wherein the strips deposited as part of each next set of parallel strips are deposited at an angle different from 180° with respect to the strips of all the previous sets;
• d. on top of the previously deposited groups of strips, a next group of parallel strips deposited side by side at said predetermined spacing, in parallel to and immediately adjacent to the strips of the first group;
• e. on top of the previously deposited groups of strips, a next group of parallel strips deposited side by side at said predetermined spacing, in parallel to and immediately adjacent to the strips of the second group;
• f. a repetition of groups according to e. for all remaining sets of the m sets of strips;
• g. a repetition of groups according to d. to f. until a last group of parallel strips is deposited such that all the predetermined spacings are completely occupied by adjacently positioned strips,
• and wherein the first group of parallel strips according to a. of a following layer assembly is deposited below the last group of parallel strips according to g of a previous layer assembly.