Mechanical analysis of Foam and plastic honeycomb panels

Simon Gonzalez

Foam Panel• Composition of Foam Panel

– FR4 skins– Blue plastic mesh– Glued with Araldite 2011 (side

1) and Araldite AY-103 (side 2) – Aluminum frame

• Scans of the panel were done on both sides along the length and width of the panel.

Results From Side 1

• Standard deviation from measurements (in mm)– 0.16411 for Z(136)– 0.11056 for Z(288)– 0.06977 for Z(527)– 0.05125 for Z(688)

400 600 800 1000 1200 1400 16000

0.5

1

1.5

2

2.5

3

3.5

4

ref. - Z(136)ref. - Z(288)ref. - Z(527)ref. - Z(688)

Edge A to C

• Standard deviation from measurements (in mm)– 0.05451 for Z(200)– 0.07511 for Z(400)– 0.05545 for Z(715)– 0.05803 for Z(900)

400 500 600 700 800 900 1000 1100 1200 1300 1400

-0.2

0

0.2

0.4

0.6

0.8

1

ref. - Z(200)ref. - Z(400)ref. - Z(715)ref. - Z(900)

Edge B to D

Results From Side 2

400 600 800 1000 1200 1400 16000

2

4

6

8

10

12

ref. - Z(108)ref. - Z(511)

Edge A to C

• Standard deviation from measurements (in mm)– 0.0387 for Z(108)– 0.0439 for Z(511)

400 500 600 700 800 900 1000 1100 1200 1300 1400

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

ref - Z(400)ref - Z(715)ref - Z(900)ref - Z(200)

Edge B to D

• Standard deviation from measurements (in mm)– 0.03568 for Z(400)– 0.03909 for Z(715)– 0.03947 for Z(900)– 0.02269 for Z(200)

• The graphs is generated by subtracting the panel form the marble reference.

Large Honeycomb Panel• Consist of a plastic

honeycomb.

• Scans of the panel were done on both sides along the length and width of the panel.

Results From Side 1 Edge and Side 2 Edge A to B

0 200 400 600 800 1000 1200 1400 1600 1800 2000

-7

-6

-5

-4

-3

-2

-1

0

1

ref. - Z(117)

ref. - Z(441)

ref. - Z(791)

ref. - Z(1163)

Side 1 Edge A to B

• Standard deviation from measurements (in mm)– 0.05247 for Z(117)– 0.0846 for Z(441)– 0.08411 for Z(791)– 0.09544 for Z(1163)

0 500 1000 1500 2000 2500

-6

-5

-4

-3

-2

-1

0

1

2

3

4

ref. - Z(52.64)ref. - Z(771.36)

Side 2 Edge A to B

• Standard deviation from measurements (in mm)– 0.0999 for Z(52.64)– 0.07321 for Z(771.36)

Results From Side 1(edges C to D and D to C), Side 2 (edges C to D and D to C)

200 400 600 800 1000 1200 1400 1600 1800

-8

-6

-4

-2

0

2

4

6

8

10

CD ref. -Z(401.82)

CD ref. - Z(986.5)

DC ref. - Z(400.72)

DC ref. - Z(987.4)

Side 1

• Standard deviation from measurements (in mm)– 0.1965 for Z(401.82)– 0.14259 for Z(986.5)– 0.25678 for Z(400.72)– 0.22024 for Z(987.4)

200 400 600 800 1000 1200 1400 1600 1800

-3

-2

-1

0

1

2

3

4

5

6

CD ref. - Z(403.57)

CD ref. - Z(984.18)

DC ref. - Z(402)

DC ref. - Z(983)

Side 2

• Standard deviation from measurements (in mm)– 0.2421 for Z(403.57)– 0.19152 for Z(984.18)– 0.17784 for Z(402)– 0.11398 for Z(983)

Results From Curve Side 1(edges C to D and D to C), Side 2 (edges C to D and D to

C)

200 400 600 800 1000 1200 1400 1600 1800

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

CD line - (ref. - Z(401.82))DC line - (ref. - Z(400.72))CD line - (ref. - Z(986.5))DC line - (ref. - Z(987.4))

Side 1

• Standard deviation from measurements (in mm)– 0.0348 for Z(401.82)– 0.0513 for Z(400.72)– 0.0439 for Z(986.5)– 0.0317 for Z(987.4)

200 400 600 800 1000 1200 1400 1600 1800

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

CD line - (ref. - Z(403.57))CD line - (ref. - Z(984.18))DC line - (ref. - Z(402.00))DC line - (ref. - Z(983))

Side 2

• Standard deviation from measurements (in mm)– 0.0379 for Z(403.57)– 0.0255 for Z(402.00)– 0.0340 for Z(984.18)– 0.0379 for Z(983)