Robocop - Future Concepts for Military Exoskeletons

Casualties during times of conflict and war can be counted in the hundreds of thousands or even millions, with the vast majority coming from the men and women on the ground. Body armour for these soldiers is essential. Flak vests and tin hats are very far in the past: experimentation and research with armour that will provide full protection is ongoing and evolving.

While full-body armour like Robocop's may be far in the future, advances in material science, robotics, and AI are paving the way for next-generation military body armour that would offer total protection to armed forces.

Smart materials that react to stimuli like pressure, temperature, or electrical signals could be used to develop suits that morph and adjust to different threats and environments. Ceramic plates hardening against explosives, flexible polymers diffusing energy from bullets, or an exoskeleton reconfiguring for underwater, or zero-gravity operations could all become a reality.

Integrated AI and Sensors:

Robocop's helmet with its enhanced vision and targeting systems is a starting point. Future exoskeletons could be embedded with AI that analyses battlefield data, suggests tactical options, and even autonomously controls some aspects of the armour. Sensors could provide 360-degree awareness, detecting threats like chemical weapons, hidden enemies, or even changes in enemy emotions.

Augmented Strength and Speed:

Exoskeletons could amplify human strength, allowing soldiers to carry heavier loads, break down walls, or perform superhuman feats. Imagine soldiers sprinting with the agility of Olympic athletes or leaping over obstacles with ease. This could be achieved through hydraulic or electromechanical actuators working in conjunction with human movement.

While Robocop's neural link is highly fictional, there is potential for exoskeletons to be controlled through brain-computer interfaces. This could allow for intuitive movement and faster reaction times.

Reality check

While a Robocop-like exoskeleton is still far off, the future of military armour is heading towards increased integration, adaptation, and augmentation. These concepts are just an idea of the potential of exoskeleton technology to revolutionize the battlefield. Still, consideration of both the benefits and risks is crucial to ensure ethical and responsible development.

Presently the U.S.-manufactured SAPI and ESAPI are the most technically advanced body armour fielded by the military and are constructed of boron carbide ceramic with a Spectra shield backing that breaks down projectiles and halts their momentum. The US Army Research Lab has presented a general vision for 2040 which features giving soldiers Iron Man-like powered full-body armour with strength enhancement capabilities and creating new lighter tanks. The Army has funding powered and unpowered exoskeletons to help soldiers lift loads and enhance performance.

In 2022, 100 soldiers in the 101st Airborne Division tested a soft, unpowered exoskeleton system. This unmotorized device can be selectively engaged by the soldier to assist with lifting capabilities. Biomechanical evaluations showed that the three-pound (1.36 kg) suit reduced stress on soldiers’ backs by more than 45 kg while lifting. Additionally, most soldiers increased their endurance by over 60 percent while wearing SABER. An overwhelming 90 percent of soldiers found that the exosuit increased their ability to perform.

Russia has developed the Obereg armour vest which proved its strength during tests. A bullet fired from a distance of 15 metres failed to pierce the Obereg armour vest designed to withstand 7.62x54mm B-32 armour-piercing rounds. The breast armour offers the Br5 bullet-resistant protection and consists of ceramic plates absorbing the bullet’s kinetic energy and also of high-molecular plastic. The vest’s lateral sections have the Br1 armour protection class and can be

Challenges

Several challenges will need to be overcome if an exoskeleton suit is to become a reality. The first technical challenge is related to sensing – how can the suit know when and how to move? Without rapid sensing, the lag between the operator desiring to move and the actual movement results in the operator feeling like they are moving through quicksand.

A second challenge is associated with actuation. Although actuating a knee is straightforward, more complex joints, such as hips and ankles, require very advanced, multi-dimensional actuators. Even the most advanced would still limit the full range of motion for these joints, resulting in a decrease in agility.

Thirdly has to do with power. An exoskeleton requires power on a par with a small motorcycle. Though several power alternatives are available, engines would be too noisy, fuel cells would be too hot, and batteries would be too heavy. Additionally, most power sources are very flammable or explosive, resulting in safety issues.

XSAPI was intended to provide even higher protection, and while the military never offered an official definition for the “X-threat, the standard theory is that it expands the protection to cover 7.62 x 54mm AP armour-piercing rounds.

Spectra

Spectra is a brand of ultra-high-molecular-weight polyethylene. This material is a thermoplastic polyethylene with a size and weight ratio eight times stronger than steel. It can be as much as 40% stronger than Kevlar, making it an ideal shield to add to armour plates. Spectra fibres are woven into sheets and then laid at multiple angles over each other to ensure composite strength equally in all directions. This process allows for increased durability, tensile strength, and resistance to abrasions while keeping the weight as low as possible to benefit the wearers.

Another key difference is the inclusion of a Spectra backing onto the XSAPI plates. Most ballistic plates are intended to be worn over the top of soft armour such as Kevlar. With this setup, any ceramic debris or projectiles that make it through the plate are stopped by the Kevlar’s interwoven strands. XSAPI is still intended to be worn over the top of traditional soft armour, but it includes in its design a backing of Spectra, which would provide the same protection as the Kevlar in an ESAPI setup.

Spectra can also be used in climbing equipment, bowstrings, fishing lines, high-performance sails, suspension lines on parachutes, professional kite strings, automotive winching, and yacht rigging.

Durability

Body armour must be durable and this is where XSAPI has overshadowed ESAPI used. The plates needed to be stored and handled carefully or could be compromised, leading to failure; a significant problem in a type of armour used for soldiers who need to move, fall back, and perform their duties effectively without needing to worry that rough handling will injure their armour. SAPI plates typically place a lot of material in the shoulder area, which can make it awkward to shoulder and fire certain types of rifles.

Is Robocop a reality?

These are just concepts, and the future of military exoskeletons will likely involve a combination of these ideas and others yet to be conceived. As technology advances, the line between soldier and cyborg may start to blur, posing exciting and daunting questions for the future ofThe bodyfare.

Body armour of the future is likely to incorporate advanced materials and technologies to provide increased protection whilighter lighter and more flexible. Some potential developments include the use of nanotechnology to create stronger and more lightweight materials, such as carbon nanotubes or graphene